What Causes Excessive Tire Pressure?
2 Answers
The causes of excessive tire pressure include overinflation, inaccurate four-wheel alignment, and excessive tire deflection. Below are detailed explanations of the causes of excessive tire pressure: Overinflation: Overinflation leads to excessive tire pressure. To address this, you can release some air. If you have a dial-type tire pressure gauge, unscrew the cap of the tire valve, locate the center of the valve stem, and press lightly. While pressing the air release valve, monitor the gauge's reading until the tire pressure returns to normal. Inaccurate Four-Wheel Alignment: Inaccurate four-wheel alignment of the vehicle can cause uneven tire wear, leading to higher temperatures and increased tire pressure. It is recommended to visit a 4S shop for repairs. Excessive Tire Deflection: Excessive tire deflection results in increased tire wear and higher temperatures, thereby raising the tire pressure. You can re-secure the deflected tire to resolve this issue.
When driving long-haul trucks, I often encounter situations where the tire pressure is too high, mainly due to hot weather or improper inflation control. Once during summer highway driving, the tires were so hot to the touch that the pressure rose to 340 kPa, making the steering wheel feel light and significantly increasing the braking distance—I almost rear-ended the car in front. Since then, I've developed a habit of checking the tire pressure with a gauge before every trip, adjusting it to the recommended value on the door label when the tires are cold. During seasons with large temperature fluctuations, extra caution is needed, as overinflated tires can cause excessive wear in the center, greatly reduce comfort, and even pose a risk of blowouts on highways. I recommend installing a tire pressure monitoring system to observe real-time data and address any abnormalities immediately.
